Spatially tailored spin wave excitation for spurious-free, low-loss magnetostatic wave filters with ultra-wide frequency tunability [PDF]
Microsystems & NanoengineeringYttrium iron garnet (YIG) magnetostatic wave (MSW) radio frequency cavity filters are promising for sixth-generation (6G) communication systems due to their wide frequency tunability. However, the presence of severe spurious modes arising from the finite
Shuxian Wu +4 more
doaj +2 more sources
Spurious-Mode Suppression in Sc0.2Al0.8N Film Lamb Wave Resonators and Filters with Arc-Shaped Apodization [PDF]
MicromachinesLamb wave devices have the advantage of monolithic multi-frequency integration and show great application potential in mobile communications. However, their performance is often limited by spurious modes. In this work, an arc-shaped apodization electrode
Kai Cai +4 more
doaj +2 more sources
The Suppression of Spurious Modes in TC-SAW Resonators by the Application of Bent Metal Strips [PDF]
SensorsThis article investigates the use of bent metal strips on the top of a SiO2 layer for the suppression of spurious modes in temperature-compensated surface acoustic wave (TC-SAW) resonators employing a SiO2/Cu/128°YX-LiNbO3 structure.
Menghui Li +6 more
doaj +2 more sources
Equivalent Circuit Extraction of SAW Resonator with Spurious Modes Interference over a −55 °C to 85 °C Temperature Range [PDF]
MicromachinesSurface acoustic wave (SAW) resonators are widely employed to design radio-frequency (RF) filters in wireless communication. To adapt to various application scenarios, the article proposes an equivalent circuit model based on the Butterworth–Van Dyke ...
Xianli Tang, Yonghao Jia, Yuandong Gu
doaj +2 more sources
Control of Higher Order Harmonics and Spurious Modes for Microstrip Patch Antennas
IEEE Access, 2018 In rectifying or active antenna systems, the higher order modes can hamper the system efficiency, and thus, the filter antennas are used to eliminate the harmonic radiation.
Qing Huo Liu, Weiwen Li, Jian-Hua Zhou
exaly +3 more sources
Impedance‐Matched High‐Overtone Thickness‐Shear Bulk Acoustic Resonators With Scalable Mode Volume [PDF]
Advanced ScienceHigh‐overtone bulk acoustic resonators (HBARs) are widely used in microwave signal processing due to their high quality factors and multimode resonances. However, conventional HBARs often suffer from impedance mismatch at metal interfaces, spurious modes,
Zi‐Dong Zhang +7 more
doaj +2 more sources
Coherent electrically-charged quantum black holes [PDF]
European Physical Journal C: Particles and FieldsWe improve upon the results presented in Casadio et al. (Phys Rev D 105:124026, 2022) deriving a quantum-corrected Reissner–Nordström geometry containing an integrable singularity at its center while being devoid of spurious oscillations around the ...
Tommaso Antonelli +2 more
doaj +2 more sources
Variant Characteristic Mode Equations Using Different Power Operators for Material Bodies
IEEE Access, 2021 This paper is concerned with the electromagnetic theory of characteristic modes for general homogeneous material bodies using surface integral equations (SIEs), which are computationally more efficient than using volume integral equations (VIEs). However,
Xing-Yue Guo, Ren-Zun Lian, Ming-Yao Xia
doaj +1 more source
Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance
IEEE Open Journal of Power Electronics, 2021 Piezoelectric resonators have shown promise as efficient, power-dense energy storage element alternatives to continue the miniaturization of DC-DC converters.
Eric Stolt +6 more
doaj +1 more source
Understanding and eliminating spurious modes in variational Monte Carlo using collective variables
Physical Review Research, 2023 The use of neural network parametrizations to represent the ground state in variational Monte Carlo (VMC) calculations has generated intense interest in recent years.
Huan Zhang +4 more
doaj +1 more source